Mongolia · Instrument Making / Weapon Craft

Mongolian Composite Recurve Bow Making

нум (Num)

The Mongolian num (нум) — the composite recurve bow — is the most technically complex portable object in the nomadic craft vocabulary: a laminated structure of wood core, sinew backing, and horn belly that stores and releases energy more efficiently than any simple bow material alone. The Mongolian bow reversed the hierarchy of Western archery: it was shot from horseback at full gallop, requiring a short, powerful draw that the composite structure uniquely enables. The defining technical knowledge is the sinew preparation: cow or horse sinew is beaten, separated into fibers, mixed with hide glue, and applied to the back of the bow core in a specific layering sequence while the core is in a reflexed (pre-bent) position. When the glue dries and the bow is released, the sinew tension produces the bow's characteristic reverse curve — 'the bow bends toward you before it bends away.'

Risk level: Critically Endangered · Mongolian traditional archery — UNESCO Representative List (2020); bow making on Mongolia national ICH list

Alternate Names
Num; Mongolian bow; composite recurve; sinew-backed bow
Geographic Center
Ulaanbaatar (primary bow workshop center); traditional bow communities throughout steppe provinces
Community / Ethnic Group
Mongolian people — bow making traditionally men's specialist knowledge; Naadam archery tradition
Estimated Origin
Ancient Central Asian composite bow tradition; Mongol Empire (13th century CE) represents peak development; post-Soviet revival from 1990
Cultural Function
Naadam festival archery (national sport); hunting; cultural identity — the bow is the primary Mongolian cultural symbol; warrior tradition heritage
Primary Materials
Birch or willow wood core; sinew (cow or horse — separated into fibers); water buffalo or ibex horn for belly; hide glue
Primary Tools
Sinew-beating stone; reflex form (for core bending during sinew application); thumbnail (for air bubble test); bow press (for curing under compression)
Process Overview
Wood core shaping in reflex -> horn belly preparation and gluing -> sinew beating and fiber separation -> glue temperature wrist test -> sinew layer application with air bubble thumbnail test -> curing under compression (months) -> bow press release and reflex assessment -> birch bark and fish skin wrapping -> string installation and draw weight test
Traditional Applications
Naadam archery (national sport); hunting; warrior tradition
Contemporary Applications
Naadam festival archery; traditional archery revival; collector craft; cultural tourism
Notable Practitioners
Mongolian traditional bow makers — Ulaanbaatar; fewer than 20 active traditional composite bow makers; Mongolian Archery Federation certified masters
Key References
Adam, J. (2016). The Composite Bow. Osprey Publishing; UNESCO ICH nomination file — Mongolian traditional archery (2020); Mongolian Archery Federation technical documentation
Verification Status
Verified

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